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Introduction to OpenEdge ABL - OpenAPI

Seamlessly Sync OpenAPI with Your Source Code

OpenAPI Generators streamline API development by automatically generating code, client libraries, and documentation based on an OpenAPI Specification (OAS). However, our plugin takes it a step further—it directly syncs your OpenAPI spec into your source code in real time.

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ABL server generator

The ABL server-side generation (abl-pasoe) is a specialized component of the OpenAPI generator that creates a complete server-side implementation in OpenEdge ABL (Advanced Business Language) for deploying REST services on PASOE (Progress Application Server for OpenEdge). Here's what it specifically does:

Service Adapter Generation:

• Creates PASOE service adapters that handle incoming HTTP requests
• Maps OpenAPI paths to ABL procedures using a consistent naming convention
• Generates proper path handling with support for all HTTP methods (GET, POST, PUT, DELETE, etc.)
• Implements path parameter validation and processing

Model Generation:

• Creates ABL classes for request and response models
• Implements builders for complex object construction
• Handles nested data structures with proper naming conventions
• Generates list models for array handling
• Provides JSON serialization/deserialization support

Business Logic Layer:

• Generates business logic interface classes
• Creates implementation templates for actual business logic
• Provides proper separation between API handling and business implementation
• Supports temp-table parameters for efficient data handling

Supporting Infrastructure:

• Generates JSON helper classes for data conversion
• Creates necessary package structure following OpenEdge conventions
• Sets up proper file organization for PASOE deployment
• Implements error handling and parameter validation

ABL client generator

The ABL client-side generation (abl) creates a complete HTTP client implementation in OpenEdge ABL for consuming REST services. Here's what it specifically does:

API Client Generation:

• Creates ABL classes for API endpoints
• Implements HTTP client methods for each API operation
• Handles request/response serialization
• Supports all HTTP methods (GET, POST, PUT, DELETE, etc.)
• Manages authentication (Basic, Bearer token)

Model Generation:

• Creates ABL classes for request and response models
• Implements builder patterns for complex object construction
• Handles nested data structures with consistent naming
• Generates list models for array handling
• Provides JSON serialization/deserialization

HTTP Client Infrastructure:

• Generates HTTP client configuration classes
• Creates client service factory for instance management
• Implements client registry for resource management
• Provides request/response interfaces
• Handles connection pooling and lifecycle

Supporting Components:

• JSON helper classes for data conversion
• Logging configuration
• Token provider interfaces for authentication
• Error handling and parameter validation
• Type-safe data handling